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  <div id="layout-content"><div id="function.ifx-query" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">ifx_query</h1>
  <p class="verinfo">(PHP 4, PHP 5 &lt; 5.2.1)</p><p class="refpurpose"><span class="refname">ifx_query</span> &mdash; <span class="dc-title">Send Informix query</span></p>

 </div>
 
 <div class="refsect1 description" id="refsect1-function.ifx-query-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="methodname"><strong>ifx_query</strong></span>
    ( <span class="methodparam"><span class="type">string</span> <code class="parameter">$query</code></span>
   , <span class="methodparam"><span class="type">resource</span> <code class="parameter">$link_identifier</code></span>
   [, <span class="methodparam"><span class="type">int</span> <code class="parameter">$cursor_type</code></span>
   [, <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter">$blobidarray</code></span>
  ]] ) : <span class="type">resource</span></div>

  <p class="para rdfs-comment">
   Sends a <code class="parameter">query</code> to the currently active database on
   the server that&#039;s associated with the specified link identifier.
  </p>
  <p class="para">
   For &quot;select-type&quot; queries a cursor is declared and opened.
   Non-select queries are &quot;execute immediate&quot;.
  </p>
  <p class="para">
   For either query type the number of (estimated or real) affected rows is
   saved for retrieval by <span class="function"><a href="ifx_affected_rows.html" class="function">ifx_affected_rows()</a></span>.
  </p>
  <p class="para">
   If the contents of the TEXT (or BYTE) column allow it, you can also use
   <em>ifx_textasvarchar(1)</em> and 
   <em>ifx_byteasvarchar(1)</em>.  This allows you to treat TEXT
   (or BYTE) columns just as if they were ordinary (but long) VARCHAR columns
   for select queries, and you don&#039;t need to bother with blob id&#039;s.
  </p>
  <p class="para">
   With <em>ifx_textasvarchar(0)</em> or 
   <em>ifx_byteasvarchar(0)</em> (the default situation), select
   queries will return BLOB columns as blob id&#039;s (integer value).  You can
   get the value of the blob as a string or file with the blob functions (see
   below).
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-function.ifx-query-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>

    
     <dt>
<code class="parameter">query</code></dt>

     <dd>

      <p class="para">
       The query string.
      </p>
     </dd>

    
    
     <dt>
<code class="parameter">link_identifier</code></dt>

     <dd>

      <p class="para">
       The link identifier.
      </p>
     </dd>

    
    
     <dt>
<code class="parameter">cursor_def</code></dt>

     <dd>

      <p class="para">
       This optional parameter allows you to make this a 
       <em>scroll</em> and/or <em>hold</em> cursor.
       It&#039;s a bitmask and can be either <strong><code>IFX_SCROLL</code></strong>,
       <strong><code>IFX_HOLD</code></strong>, or both or&#039;ed together. I you omit this
       parameter the cursor is a normal sequential cursor.
      </p>
     </dd>

    
    
     <dt>
<code class="parameter">blobidarray</code></dt>

     <dd>

      <p class="para">
       If you have BLOB (BYTE or TEXT) columns in the query, you can add
       a <code class="parameter">blobidarray</code> parameter containing the
       corresponding &quot;blob ids&quot;, and you should replace those columns
       with a &quot;?&quot; in the query text.
      </p>
     </dd>

    
   </dl>

  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-function.ifx-query-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   Returns valid Informix result identifier on success, or <strong><code>FALSE</code></strong> on errors.
  </p>
 </div>


 <div class="refsect1 examples" id="refsect1-function.ifx-query-examples">
  <h3 class="title">范例</h3>
  <p class="para">
   <div class="example" id="example-1293">
    <p><strong>Example #1 
     Show all rows of the &quot;orders&quot; table as a HTML table
    </strong></p>
    <div class="example-contents">
<div class="phpcode"><pre><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />ifx_textasvarchar</span><span style="color: #007700">(</span><span style="color: #0000BB">1</span><span style="color: #007700">);&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #FF8000">//&nbsp;use&nbsp;"text&nbsp;mode"&nbsp;for&nbsp;blobs<br /></span><span style="color: #0000BB">$res_id&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">ifx_query</span><span style="color: #007700">(</span><span style="color: #DD0000">"select&nbsp;*&nbsp;from&nbsp;orders"</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$conn_id</span><span style="color: #007700">);<br />if&nbsp;(!&nbsp;</span><span style="color: #0000BB">$res_id</span><span style="color: #007700">)&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Can't&nbsp;select&nbsp;orders&nbsp;:&nbsp;%s\n&lt;br&nbsp;/&gt;%s&lt;br&nbsp;/&gt;\n"</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">ifx_error</span><span style="color: #007700">(),&nbsp;</span><span style="color: #0000BB">ifx_errormsg</span><span style="color: #007700">());<br />&nbsp;&nbsp;&nbsp;&nbsp;die;<br />}<br /></span><span style="color: #0000BB">ifx_htmltbl_result</span><span style="color: #007700">(</span><span style="color: #0000BB">$res_id</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"border=\"1\""</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">ifx_free_result</span><span style="color: #007700">(</span><span style="color: #0000BB">$res_id</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</pre></div>
    </div>

   </div>
   <div class="example" id="example-1294">
    <p><strong>Example #2 Insert some values into the &quot;catalog&quot; table</strong></p>
    <div class="example-contents">
<div class="phpcode"><pre><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br /><br /></span><span style="color: #FF8000">//&nbsp;create&nbsp;blob&nbsp;id's&nbsp;for&nbsp;a&nbsp;byte&nbsp;and&nbsp;text&nbsp;column<br /></span><span style="color: #0000BB">$textid&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">ifx_create_blob</span><span style="color: #007700">(</span><span style="color: #0000BB">0</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">0</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"Text&nbsp;column&nbsp;in&nbsp;memory"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$byteid&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">ifx_create_blob</span><span style="color: #007700">(</span><span style="color: #0000BB">1</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">0</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"Byte&nbsp;column&nbsp;in&nbsp;memory"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">//&nbsp;store&nbsp;blob&nbsp;id's&nbsp;in&nbsp;a&nbsp;blobid&nbsp;array<br /></span><span style="color: #0000BB">$blobidarray</span><span style="color: #007700">[]&nbsp;=&nbsp;</span><span style="color: #0000BB">$textid</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$blobidarray</span><span style="color: #007700">[]&nbsp;=&nbsp;</span><span style="color: #0000BB">$byteid</span><span style="color: #007700">;<br /><br /></span><span style="color: #FF8000">//&nbsp;launch&nbsp;query<br /></span><span style="color: #0000BB">$query&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #DD0000">"insert&nbsp;into&nbsp;catalog&nbsp;(stock_num,&nbsp;manu_code,&nbsp;"&nbsp;</span><span style="color: #007700">.<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #DD0000">"cat_descr,cat_picture)&nbsp;values(1,'HRO',?,?)"</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$res_id&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">ifx_query</span><span style="color: #007700">(</span><span style="color: #0000BB">$query</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$conn_id</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$blobidarray</span><span style="color: #007700">);<br />if&nbsp;(!&nbsp;</span><span style="color: #0000BB">$res_id</span><span style="color: #007700">)&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #FF8000">/*&nbsp;...&nbsp;error&nbsp;...&nbsp;*/<br /></span><span style="color: #007700">}<br /><br /></span><span style="color: #FF8000">//&nbsp;free&nbsp;result&nbsp;id<br /></span><span style="color: #0000BB">ifx_free_result</span><span style="color: #007700">(</span><span style="color: #0000BB">$res_id</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</pre></div>
    </div>

   </div>
  </p>
 </div>


 <div class="refsect1 seealso" id="refsect1-function.ifx-query-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="function"><a href="ifx_connect.html" class="function" rel="rdfs-seeAlso">ifx_connect()</a> - Open Informix server connection</span></li>
   </ul>
  </p>
 </div>


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